We have a database to run a bulletin board. There are a bunch of reads to read posts, a few writes to write new posts.
Almost all database action is about cute, but unnecessary accessories, like kepping count of user data, like last access time, read counts, etc.
I suggest we get an option to shut these server hogs off. Alternatively, there might be a database organisation that improves performance. I could care less about data security of write counts and user visit times. I would not mind if that stuff stayed cached for a long time and only occasionally got written to disk.